Test TC-1A - Checking System For Trouble Codes: Notes

WARNING: This page is about a different car, the 1995 Dodge Ram Wagon, 1995 Dodge Ram Van, 1995 Dodge Pickup, 1995 Dodge Dakota, and 1995 Dodge Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: For circuit and connector terminal identification, see CONNECTOR IDENTIFICATION . For wiring diagram, see WIRING DIAGRAMS section at the end of this article.

NOTE: Battery must be fully charged before proceeding.

Battery must be fully charged before proceeding. Attempt to start engine. If engine will not start, crank engine for at least 10 seconds. Connect scan tool to engine diagnostic connector. Record scan tool trouble codes.
If scan tool has a blank screen or displays an error message, this indicates a scan tool failure. To diagnose and correct these conditions, see SELF-DIAGNOSTIC TESTS in TESTS W/CODES - BODY CONTROL COMPUTER article in ENGINE PERFORMANCE section.
- TESTS W/CODES - BODY CONTROL COMPUTER (for Dakota)
- TESTS W/CODES - BODY CONTROL COMPUTER (for Ram Pickup & Ram Van/Wagon)
If scan tool displays NO RESPONSE, go to TEST NS-6A. If trouble codes are displayed, see TROUBLE CODES table. If no trouble codes are displayed and a driveability problem is present, go to TEST NTC-1A. If no trouble codes are displayed and a no-start problem is present, go to TEST NS-1A.

TROUBLE CODES

DTC

Scan Tool Message

Test No.

NO CRANK REFERENCE SIGNAL AT PCM

TC-2A

NO CAM SYNC SIGNAL AT PCM

TC-3A

SLOW CHANGE IN IDLE MAP SENSOR SIGNAL OR NO CHANGE IN MAP FROM START TO RUN

TC-4A

MAP SENSOR VOLTAGE TOO LOW

TC-5A

MAP SENSOR VOLTAGE TOO HIGH

TC-6A

NO VEHICLE SPEED SENSOR SIGNAL

TC-7A

O2S STAYS AT CENTER OR LEFT O2S STAYS AT CENTER

TC-8A

RIGHT O2S STAYS AT CENTER

TC-9A

O2S STAYS ABOVE CENTER (RICH) OR LEFT O2S STAYS ABOVE CENTER (RICH)

TC-10A

RIGHT O2S STAYS ABOVE CENTER (RICH)

TC-11A

O2S STAYS BELOW CENTER (LEAN) OR LEFT O2S STAYS BELOW CENTER (LEAN)

TC-12A

RIGHT O2S STAYS BELOW CENTER (LEAN)

TC-13A

LEFT O2S SHORTED TO VOLTAGE

TC-14A

RIGHT O2S SHORTED TO VOLTAGE

TC-15A

SYSTEM RICH L-IDLE ADAP AT LEAN LIMIT

TC-16A

SYSTEM RICH R-IDLE ADAP AT LEAN LIMIT

TC-16A

SYSTEM LEAN L-IDLE ADAP AT RICH LIMIT

TC-16A

SYSTEM LEAN R-IDLE ADAP AT RICH LIMIT

TC-16A

ECT SENSOR VOLTAGE TOO LOW

TC-17A

ECT SENSOR VOLTAGE TOO HIGH

TC-18A

INTAKE AIR TEMP SENSOR VOLTAGE LOW

TC-19A

INTAKE AIR TEMP SENSOR VOLTAGE HIGH

TC-20A

THROTTLE POSITION SENSOR VOLTAGE LOW

TC-21A

THROTTLE POSITION SENSOR VOLTAGE HIGH

TC-22A

IDLE AIR CONTROL MOTOR CIRCUITS

TC-23A

INJECTOR CONTROL CIRCUITS

TC-24A

EGR SYSTEM FAILURE

TC-32A

EGR SOLENOID CIRCUIT

TC-33A

EVAP SOLENOID CIRCUIT

TC-34A

TORQUE CONVERTER CLUTCH SOLENOID CIRCUIT

TC-35A

TRANS OVERDRIVE SOLENOID CIRCUIT

TC-36A

A/C CLUTCH RELAY CIRCUIT

TC-37A

AUTO SHUTDOWN RELAY CONTROL CIRCUIT

TC-38A

NO ASD RELAY OUTPUT VOLTAGE AT PCM

TC-39A

TRANS TEMP SENSOR VOLTAGE TOO LOW

TC-40A

TRANS TEMP SENSOR VOLTAGE TOO HIGH

TC-41A

PCM FAILURE SRI NOT STORED OR PCM FAILURE EEPROM WRITE DENIED

TC-42A

Code 17

ENGINE IS COLD TOO LONG

⁽¹⁾ *

Code 53

PCM FAILURE SPI COMMUNICATIONS

⁽²⁾ *

Code 41

GENERATOR FIELD NOT SWITCHING PROPERLY

⁽³⁾ *

Code 44

BATTERY TEMP SENSOR VOLTAGE OUT OF LIMIT

⁽³⁾ *

Code 47

CHARGING SYSTEM VOLTAGE TOO LOW

⁽³⁾ *

Code 46

CHARGING SYSTEM VOLTAGE TOO HIGH

⁽³⁾ *

Code 34

SPEED CONTROL SOLENOID CIRCUITS

⁽⁴⁾ *

⁽¹⁾	Check cooling system if engine temperature does not reach 176°F (80°C) after driving 20 minutes. This code may set in error during very cold slow speed driving.

⁽²⁾	Replace PCM and perform TEST VER-2.

⁽³⁾	See appropriate GENERATORS & REGULATORS article in the ELECTRICAL section. See article references following this table.

⁽⁴⁾	Refer to appropriate CRUISE CONTROL SYSTEM article in the ACCESSORIES/SAFETY EQUIPMENT section. See article references following this table.